261719451

素因数分解:

$3^3\times 7^1\times {\mathrm{503}}^1\times {\mathrm{2753}}^1$

素因数の和:3272

約数の個数: 32

約数和(自身を含む): 444165120

約数和(自身を除く): 182445669

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 503, 1509, 2753, 3521, 4527, 8259, 10563, 13581, 19271, 24777, 31689, 57813, 74331, 95067, 173439, 520317, 1384759, 4154277, 9693313, 12462831, 29079939, 37388493, 87239817, 261719451]

約数ペア:

[(1, 261719451), (3, 87239817), (7, 37388493), (9, 29079939), (21, 12462831), (27, 9693313), (63, 4154277), (189, 1384759), (503, 520317), (1509, 173439), (2753, 95067), (3521, 74331), (4527, 57813), (8259, 31689), (10563, 24777), (13581, 19271)]